I think the trick is to EQ the reverb return so the effect doesn't wash everything out. You can really tuck the reverb in behind the mix so it's not obvious but it's obvious when you mute it.

Also it can take quite a while to find the right reverb, so I spend a good while auditioning various options.

CD

I like the word "auditioning" in this context, that's indeed what it's like, auditioning different verb settings until one really stands out for a particular song. I don't bother with factory presets, well I do start with them sometimes but I find I have to "tame the lion" so to speak, when it comes to tweaking those presets to get one I like.